baber/WOPTO huggingface dataset:
Patent GB-152654-A (GB)
Title: Improvements in gear slotting machines
IPC: B23F1/04
Filed: 1920-10-18
Abstract: 152,654. Schaerer, O. Oct. 18, 1919, [Convention date]. Gear-cutting; tools.-A form-tool gear-shaping machine has two vertically reciprocating diametrically-opposed tool rams for cutting, two or more teeth by simultaneous or alternate working strokes, the tools being radially fed at each working stroke. An adjustable crank 32 driven through change gearing from the driving shaft 27 reciprocates a rack 33 which through a pinion 35 oscillates a shaft 34 whose movement is transmitted through pinions 40, 41, racks 36. 37, and pinions 42. 43 to the shafts 38, 39. In Fig. 1 the cutters are shown as working alternately, while the racks 36, 37 are shown as arranged for operating the cutters simultaneously. Pinions 44, 45 feathered on the shafts 38, 39 respectively engage racks fixed to the tool rams 8, 9 to reciprocate the tools. The rams are carried on slides 6, 7 connected by threaded' spindles 15, 16 to racks 13, 14 sliding in a recess of a yoke portion 2 of the frame and actuated by a pinion 12 on a spindle carrying a second pinion 17 engaging a rack 19. A cam 20 on a shaft 21<a> is rotated to actuate the rack 19 and feed the tools radially bv means of a ratchet wheel 21 intermittently operated by a lever 22, pawl 23, and oscillating lever 24 on the shaft 34. A fixed pawl 23<a> prevents backward movement of the ratchet wheel. The rack 19 is returned to the lowest position on completion of two teeth by means of a weighted lever 18. During this operation a sleeve 25 surrounding the shaft 21<a> is rotated by means of a link 26, and a projection on the sleeve lifts a lever 55 and disengages the stop lever 51 from a dividing wheel 47. The lever 55 is afterwards disengaged from the sleeve by an adjustable screw 25<b>. A link 52, Fig. 8, connects the stop lever to a jaw coupling portion 53 which is thus moved into engagement with a continuously rotating member 46. This motion is transmitted through spur and worm gearing to a table 3 carrying the blank 4. A hardened die 5 is placed beneath the blank to avoid chipping the lower edges of the teeth. A safety lever 54 attached to the stop lever raises the pawl 23 while the dividing mechanism is in operation so that the feed motion and dividing motion cannot take place simultaneously. During the next cutting operation, the upward movement of the lever 18 rotates the sleeve 25 and its projection again engages the lever 55. To obtain better ratios for the wheels operating the dividing mechanism the gear shaft 48 carries a pinion 56 engaging a pinion 57 fixed to a cam 58. The lever 51 carries a finger 59 which slides on the cam and keeps the lever 51 in its raised position through a number of revolutions of the dividinn wheel according to the ratio of the gearing 56, 57. When gears with an odd number of teeth are cut, the tools 10<b>, 11<b> are shaped as shown in Fig. 6. For cutting small teeth, the tools may cut a number of teeth at one operation, the dividing mechanism being made to turn the blank by an amount corresponding to the number of teeth cut.
Patent GB-814869-A (GB)
Title: Cutter for well drills
IPC: E21B10/50
Filed: 1957-09-18
Abstract: 814,869. Boring earth &c. HUGHES TOOL CO. Sept. 18, 1957 [March 22, 1957], No. 29434/57. Class 85 A roller cutter has a portion 3 for cutting the hole bottom and a portion 10 for cutting the side of the hole, the portion 10 being provided with a series of concentric grooves filled with wear resistant material 26 which is bonded to the sides and bottom of the grooves. The body of the cutter is an alloy steel and the wear resistant material is tungsten carbide particles in a mild steel matrix. The body and the teeth 4, 5 may be hardened, or the flanks and ends of the teeth may carry wear resistant material.
Patent GB-337153-A (GB)
Title: Improvements in or relating to the production of aliphatic acids by fermentation
IPC: C12P7/40
Filed: 1929-09-30
Abstract: 337,153. Distillers Co., Ltd., and Hutchinson, H. B. Sept. 30, 1929. Volatile fatty acids; acetic acid; butyric acid; propionic acid.-These acids are produced by the fermentation with thermophilic organisms of a sugar solution of low concentration, to which stronger sugar solution is added in such a way that the concentration remains sufficiently low to prevent the formation of non-volatile fatty acids. The thermophilic organisms may be obtained, for example, from animal excrements or from decomposing cellulosic material. They are characterized, first, by their capacity to decompose and ferment cellulose in the entire absence of other sources of carbon nutrient, secondly, by the very high optimum temperature of their growth, e.g. 60- 65‹ C., and thirdly, by the formation of terminal spores which render them resistant to temperatures of 100‹ C. or over for short periods. The hydrogen ion concentration is maintained at the optimum for the organisms employed, i.e. between pH5 and pH9, by addition of neutralizing agents' such as sodium bicarbonate, ammonia, lime water, and calcium carbonate. Nutrients such as ammonia, ammonium sulphate, and ammonium phosphate may be added. The sugar solution used may be diluted molasses from cane or beet sugar manufacture, solutions from crude sucrose, from glucose, sorghum, carob beans and other plant products containing sugar, from products of hydrolysis of cellulose such as those obtained by treating sawdust with acid, or obtained in the sulphite treatment of wood, or solutions from the hydrolysis of starch and starchcontaining materials. In this way, an economic concentration of fatty acid salts, especially acetates, but including butyrates and sometimes propionates, may be obtained. The acid can then be recovered by any known means. In the example, a fermenter of 600 gallons capacity is used, and on each of 7 days, 80 lbs, of molasses in 80 gallons of water is added. The fermenter has already been charged with a thermophilic cellulose-fermenting organism. A temperature of 60' C. is maintained, and the hydrogen ion concentration is kept between pH6 and pH7.5 by the usual means. Having thus built up a wash of low sugar concentration suitable for further additions and corresponding withdrawals, 80 gallons of wash may be withdrawn per day and 80 gallons of 10 per cent molasses added. Using beet molasses, the addition of nutrients will not, in general, be necessary, Specification 316,287 is referred to.
Patent GB-1211373-A (GB)
Title: Improvements in and relating to methods of depositing layers of mixed crystal aiii-bv semiconductor compounds
Inventor: FISHER CAROLE ANNE
IPC: B01J19/00
Filed: 1967-06-27
Abstract: 1,211,373. Gallium indium arsenide and other mixed crystals. MULLARD Ltd. 21 June, 1968 [27 June, 1967], No. 29527/67. Heading C1A. Compounds of formula A x A<SP>1</SP> (1-x) B (where A, A<SP>1</SP> are two different elements selected from Al, Ga or In and B is As, P or a mixture As y P 1-y O <x,y<1 ) are deposited from the vapour phase on to a substrate by passing a gas stream, which contains B, over a melt of metal A (which is more chemically active than A<SP>1</SP>) and then over a melt containing both A and A<SP>1</SP> before depositing the compound on the substrate. The gas stream may suitably consist of the trichloride(s) of the Group V element and hydrogen or the hydride(s) of the trivalent Group V element and hydrogen chloride. The first melt preferably contains an impurity element, e.g. Zn. In a preferred embodiment, a stream of H 2  containing AsCl 3  vapour is passed over molten Ga, which is at a temperature of 400-500‹ C., to partially saturate the gas with volatile gallium chlorides. The gas is then passed over a melt of Ga and In which is at a temperature of 750-900‹ C. The resultant gas stream is passed over a gallium arsenide substrate heated to a temperature of 800-900‹ C. to vapour etch the substrate surface and the substrate temperature is then reduced to 600- 750‹ C. for the epitaxial deposition of gallium indium arsenide.
Patent GB-464490-A (GB)
Title: Photographic copying apparatus
IPC: G03B27/46
Filed: 1935-10-25
Abstract: 464,490. Photographic copying-apparatus. BEIDLER, G. C. Oct. 25, 1935, No. 29531. [Class 98 (i)] In copying-apparatus of the kind producing photographs on both sides of a film, the exposure chamber comprises a rotatable base ring and a cover between which is located a stationary sheathing, the ring and cover being interconnected and supporting for rotation a film magazine, means for drawing the film through the exposure chamber and a cutting device for cutting each exposed length of film after it has been drawn through the exposure chamber. The apparatus has a reflecting prism, lens, bellows, and body. As shown, a roller-blind shutter 38 rotatable by a crank prevents entrance of light into the exposure chamber. The film, contained in a spool in a magazine 64 on top of the exposure chamber, is, after introduction into the latter through a slot 63, cut by a knife 75 and fed by rollers 73, 74 to a discharge slot 86. The knife and feed rollers are operated by separate cranks, a film feed indicator being provided. The exposure chamber has a base ring 57 rotatable in bearings, and having circumferential teeth 121 connected through gearing to an electric motor. Before the base ring reaches the limit of its rotation in one direction, switches break the circuit and alter the switch circuit so that when re-energized, the motor is driven in the opposite direction. Operation of an external crank moves a wire to trip the lens-shutter and operates an exposure counter. On completion of the return movement of the crank the switch circuit is energized to rotate the exposure chamber.
Patent GB-295981-A (GB)
Abstract: 295,981. Cool, H. R. April 20, 1927. Divided on 294,189. Recording particular operations. - A device for recording the movements of operated parts such as the opening and closing of doors comprises a stylus secured to a pivoted member or carrier yieldingly urged in one direction and positively moved in the other direction by means associated with the operated part. In one form, as shown in Fig. 1, the stylus 7 is carried by a pivoted member 8 urged to one end of its path by a -spring 20 secured to a post 22. The stylus cooperates with a clock driven record-disc in the manner described in Specifications 157,458 and 294,189. A slide 24 movable in a slot 23 of the casing extends to the outside and is provided with projecting pins 26 having holes engaged by a wire or other staple 27 to hold the slide in the slot. A lateral extension of the exterior part of the slide 24 engages the frame 31 of the door as shown in Fig. 3 so that on the opening or closing of the door the carrier 8 is moved and the stylus produces an arcuate line on the record disc. The slide and parts may be duplicated for right and left hand action. In a modification, Fig. 2, the carrier is replaced by a forked member 40 each arm of which is slotted to receive a pin on a - corresponding spring controlled sliding rod 46.
Patent GB-264438-A (GB)
Title: Improvements in ammunition hoists
IPC: F41A9/50
Filed: 1925-10-17
Abstract: 264,438. Armstrong, Whitworth, & Co., Ltd., Sir W. G., Lee, H. W., Mole, H., and Jenkins, R. T. Oct. 17, 1925. Loading-appliances. - Relates to ratchet ammunition hoists of the type described in Specifications 143,336 and 173,029, and consists in so arranging the clutch 18, which controls the driving gear 20 of the reciprocating ratchet bars 10, that disengagement of the clutch cannot take place to stop the hoist unless a slider is at the bottom of its stroke or the hoist mechanism has performed one or more complete cycles. In the form shown, the clutch is engaged by pressure on a pedal 15 acting through a bell-crank lever 17. The lever 17 carries an arm 16 from which extends a rod 21 adapted to ride on a projecting surface 22 on the slider; and the pedal 15 can only return to disengage the clutch when the rod passes over the upper end of the surface 22.
Patent GB-1432009-A (GB)
Title: Continuous furnace for ceramic products
IPC: F27D99/00
Filed: 1973-06-22
Abstract: 1432009 Continuous furnaces U REV 22 June 1973 [23 June 1972] 29668/73 Heading F4B A continuous furnace for the firing of ceramics comprises a preheating zone A, a firing zone B, a cooling zone C, a plurality, e.g. ten, of parallel horizontal channels for the passage of the ware, endless belt or chain link conveyers 16 and 17 in the preheating and cooling zones and a sliding hearth 22 for the ware or its containers in the firing zone B. The latter may be fired by heating chambers 15 above or below the channels which may exist as separate channels only in the firing zone. The conveyers may be individual to each channel or may cover the width of the preheating or cooling zone. The channels may be disposed at the eye level of an operator. Automated plant (Fig. 3) for continuous production comprises the furnace as above (26), moulding presses (30), a drier (29), glazing machines (27) and loading and unloading conveyer systems (23 and 31), the former being associated with pusher elements (24) and the latter removing the products to a sorting and packing zone.
Patent GB-162327-A (GB)
Title: Improvements in or relating to work-holding devices of boot or shoe machines
IPC: A43D95/20
Filed: 1919-11-28
Abstract: 162,327. Durrance, T., and British United Shoe Machinery Co., Ltd. Nov. 28, 1919. Edge-setting.-Relates to work-holders for machines of the type described in Specification 14696/08, which comprise a rest 28, 30 for the tread of the shoe at the fore part and heel end, a clamp C to engage the top of the fore part of the shoe, and a mechanically-operated clamp 2 to engage the back of the shoe necessarily moved each time a fresh shoe is inserted; and consists in a single actuating-means controlling both the clamps C, 2, means for urging the clamp 2 towards the shoe, and locking-mechanism for the clamp 2, As shown, the toe clamp C is operated as described in Specification 2733/12, but its operating-handle H<1> is adapted to engage a rod 14 operating a bell-crank lever 18 carrying pawls 12 normally engaging a ratchet 10 to lock the clamp 2 against rearward movement. Preferably, the construction is such that the final movement of the lever H<1> effects, through the pawls and ratchet, a slight forward positive movement of the clamp 2, which is formed to engage the shoe on both sides of its medial longitudinal vertical plane. Cam-surfaces 24 on the pawls engage a pin 22 to keep them out of action until the final movement is given to the handle H<1>, the clamp 2 being then urged towards the shoe by a spring 8.
Patent GB-215671-A (GB)
Title: An improved insulating cap for cable joints or ends
IPC: H01R4/22
Filed: 1923-11-24
Abstract: 215,671. Gelderen, F. M. van. (Assignee of Naamlooze Vennootschap Ramie Union). Oct. 8, 1923, [Convention date]. Addition to 210,668. Wire couplings. - An insulating cap for twisted wire joints as described in the parent Specification has the screwed bore 3 made with a gradual taper so as to be applicable to joints of varying sizes; this also serves to obviate the initial twisting of the wires to be jointed, the cap itself effecting the twist as well as impressing a screw thread upon the wires. The conical opening 2 merges into the bore 3 to facilitate the jointing of flex. This opening may be provided with a screw thread also preferably undercut, so as to draw the insulation into the cap. The device is stated to be applicable for jointing flex and as a cap for the ends of cable cores.
Patent GB-397695-A (GB)
Title: Improvements in or relating to the construction of houses
IPC: E04B1/35
Filed: 1932-10-24
Abstract: 397,695. Concrete buildings. MULLER, O. K. G., 27, Riemeisterstrasse, Zehlendorf, and HOLZMANN AKT.-GES. ZWEIGNIEDERLASSUNG BERLIN ABT. HOCHBAU, P., 20, Schoneberger Ufer, both in Berlin. Oct. 24, 1932, No. 29700. [Class 20 (i).] A skeleton building of reinforced concrete, for multi-floored houses built in blocks, is cast with continuous transverse walls I, II, III, &c. and continuous floors and roofs a, b, c ; a<1>, b<1>, c<1>, &c. forming a structure of box-like frames which are open at the front and back. The front and rear walls are subsequently built on, and interior partition walls are added. In the design shown, A, B, C, A<1>, B<1>, C<1> &c. are separate dwellings, T are staircase compartments, and S is a cellar space.
Patent GB-245575-A (GB)
Title: Improvements in or relating to the removal of sulphuretted hydrogen from gas and apparatus therefor
IPC: C10K1/12
Filed: 1924-12-10
Abstract: 245,575. Woodall-Duckham (1920), Ltd., Smith, E. W., and Finlayson, T. C. Dec. 10, 1924. Purifier waste, revivifying. -In the regeneration by aeration of a spent alkaline solution containing a suspension of an iron compound used for purifying gases from hydrogen sulphide &c., the air is mixed with the liquid under pressure so as to form an air lift and raise the regenerated solution in one or more columns to the top of an absorption tower a. The spent liquor is emulsified with air in a vessel c and is raised in pipes d successively to separators e, h, k, from which it falls in pipes f to further emulsifiers g, i. The tanks at the top of the tower may be divided into compartments used as separators if the liquid requires further aeration.
Patent GB-175695-A (GB)
Title: Improvements in and relating to the treatment of wheat for the manufacture of bread
IPC: A21D13/02
Filed: 1920-10-21
Abstract: 175,695. Negro, L. Oct. 21, 1920. [Convention date]. Rotating conveyers.-Wheat which is to be converted direct into dough is passed, after washing, into an apparatus in which is a series of plates p heated by hot air, adjustable openings for the admission of cold air being provided to control the temperature. The material is moved to and from the circumference of the plates by curved arms e mounted on a shaft d, the passages c, c<1> from one plate to the next being situate alternately at the circumference and the centre. The hot air is drawn upwardly through the apparatus so that the lower plates are more highly heated. The plates are covered with fire-proof heat-resisting material to prevent the wheat coming into direct contact with the metal.
Patent GB-1521387-A (GB)
Title: Power steering control circuit having rc timing circuit to provide damping action against rapid change in wheel speed
IPC: B62D6/02
Filed: 1976-07-19
Abstract: 1521387 Vehicle power steering NISSAN MOTOR CO Ltd 19 July 1976 [17 July 1975] 29912/76 Heading B7H In a control circuit for regulating the working fluid pressure of a power steering system in proportion to the speed of rotation of the vehicle wheels a timing circuit, includes a capacitor which is charged from an electrical signal representative of the wheel speed, and discharged through a discharge circuit which delays the time at which the capacitor discharges itself when the electrical signal falls due to sudden acceleration or deceleration of the vehicle. The control circuit thus provides the correct power assistance even when there are false representations of vehicle speed given during sudden braking and locking of the wheels or wheel slip. In a modification, Fig. 3 (not shown), a switch having normally closed contacts connected across the input and output of the timing circuit is operatively connected to a brake pedal. When the brake is applied the switch is open to allow energy stored in the capacitor to be discharged through resistors to ground so that a voltage to a drive circuit is held while the capacitor discharges its stored energy.
Patent GB-1498241-A (GB)
Title: Well-drilling turbodrill
IPC: E21B4/02
Filed: 1975-07-17
Abstract: 1498241 Boring earth VSES NI INST BUROV TEKH 17 July 1975 30002/75 Heading E1F [Also in Division Fl] The invention relates to a hydraulic welldrilling turbine in which two thrust bearings are provided for supporting the shaft, the shaft being provided with flexible means between the two thrust bearings whereby the upper thrust bearing is relieved of hydraulic load and so the possibility of contact between the rotor and stator parts of the turbine is reduced. In Fig. 1 the assembly comprises a stator casing comprising parts 4, 5, 6, 7, 8, 9, 10 secured together by screw engagement, the part 4 being connected to the lower end of the drill string (not shown), the part 10 carrying a thrust bearing 2, and the part 8 carrying an additional thrust bearing 17. A shaft assembly comprising parts 1, 12, 13, 14 secured together is rotatably mounted within the stator casing being supported on the bearings 2 and 17. The stator casing part 5 carries stator blade rings 16 which co-operate with rotor blade rings 15 carried by the shaft part 11, drilling fluid being supplied to the turbine through the drill string. The part 13 of the shaft assembly is formed as a resilient member in the form of a helical spring 18 whereby thrust of the drill bit is absorbed by the spring and the thrust bearing 2 but is not transmitted to the thrust bearing 17 whereby the life of the turbine is prolonged. In place of a helical spring, a resilient bellows member (19) is utilised in Fig. 2 (not shown), and a stack of Belleville washers in Fig. 4 (not shown). In Fig. 3 the shaft part 12' is connected to the shaft part 14 by means of a coupling device 21, 22 which allows transmission of torque also axial movement of the two parts; a compression spring 20 is disposed between the two shaft parts.
Patent GB-408038-A (GB)
Title: Improvements in automatic indexing mechanism for grinding and milling machines
IPC: B24B19/02
Filed: 1932-10-26
Abstract: 408,038. Indexing - mechanism for grinding - machines. KLINGELNBERG, G. A., KLINGELNBERG, M., JAEGER, R. G., KLINGELNBERG, W. H., and KLINGELNBERG, H. W., (trading as KLINGELNBERG SOHNE, W. F.), 56, Berghauser Strasse, Remscheid, Berghausen, Germany. Oct. 26, 1932, No. 30023. Convention date, Dec. 5, 1931. [Class 60.] Relates to automatic indexing mechanism, for use in hydraulically-operated machines for grinding or milling straight or spiral flutes in a cylindrical work-piece, and of the kind wherein the indexing head and the stop limiting its movement and also the mechanism for reciprocating the tool are actuated by power derived from a common hydraulic main. According to the invention, the indexing movement is imparted by a hydraulic piston upon which hydraulic pressure is maintained during the operation of the tool. In the apparatus shown, a tool in the form of a grinding wheel 74<a> is reciprocated over the work 1 by a hydraulic cylinder 37 the movements of which relatively to a fixed piston 38 are controlled by fluid pressure supplied by a pump 46 and under the control of slide valves 65, 72<g> in a valve casing 72. The index wheel 7 for rotating the head 6 and work 1 has radial-faced ratchet teeth engaged by a holding pawl 10. The tooltraversing cylinder 37 at the ends of its strokes operates collars 49, 50 on a shaft 51 to move the reversing valve 65 and also to actuate through a pawl 54 a valve 55. This valve admits pressure to a cylinder 59 for actuating a member 60 to release the pawl, and to a cylinder 73 for moving a piston 21 having a rack that rotates the indexing wheel 7 through toothed gearing 20, 13, 12. This gearing includes reversible pawl and ratchet gear 18, 16 or 19, 17 controlled by an axial movement of the shaft 15. The pressure in the cylinder 73 acts not only to apply indexing movement to the wheel 7 but also maintains the wheel against the stop pawl 10 while the cut is proceeding. For cutting spiral flutes, the movement of the cylinder 37 by means of a nut 35 rotates a shaft 34 which is connected with the work by bevel gearing 33, 31, 30, 29 and spur gearing 28, 27, 26, 25. Reversing gear 68 and the alternative pawls 18, 19 enable spiral flutes of opposite hand to be cut. To prevent backlash, an end thrust is applied to the shaft 34 by an hydraulically-operated piston 43. Specification 318,414, [Class 83 (iii)], is referred to.